Controlling device for internal-combustion engines.



W. W. BROWN.

CONTROLLING DEVICE FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED MAR. 12, I914.

1 ,137,254. P tente Apr. 27, 1915.

SECTION C-D UNITED STATES PATENT OFFICE.

WALTER W. BROWN, OF ERIE, PENNSYLVANIA, ASSIGNOR TO FULTON MANUFACTUR- ING COMPANY, OF ERIE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CONTROLLING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Apr. 27, 1915.

Application filed March 12, 1914. Serial No. 824,147.

To all whom it may concern: 7

Be it known that I, (VALTER W. B nown, a citizen of the United. States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Controlling Devices for Internal-Combustion Engines, of which the following is a specification.

Thisinvention relates to controlling devices for internal combustion engines and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

The device is peculiarly adapted for engines of the Diesel type and one of the pr ncipal objects of the invention 1 s to provlde a controlling device for a multiple cylinder engine and which is supplied with an air starting mechanism that will necessitate the cutting off of the fuel in those cylinders which are supplied With air starting devices. The controlling device also is susceptible to more extended use in its application/which will appear in detail in the specification and claims,

The invention is illustrated in the accompanying drawings as follows:-

Figure .1 shows an elevation of a part of a multiple cylinder engine, one of the fuel pumps-and the controlling device being in section to better show construction. Fig. 2 is a view (if the controlling levers and immediate mechanism, a part of the lever case being removed, the view being from the left of Fig. 1. Fig. 3 is a detail showing the valve actuating mechanism of the air starting device, the section being on the line A-B in Fig. 1. Fig. 4 is a plan view partly in section showing the slides controlling the lock-out slides for the several fuel pumps.

The engine is provided with three cylinders 1 2 and 3. The cylinders 1 and 3 are provided with air starting devices. The cylinder 2 is not so provided. The cam shaft 4 is mounted in the usual manner. The fuel pumps 5, 6 and 7 are adapted for feeding fuel to the cylinders 1, 2 and 3 respectively. These pumps are all of similar construction, the details of which are shown in the sectional view of the pump 5. The pump plunger 8 extends through the stufling box 9, the stufiing box having the usual follower 10. The plunger stem 11 is secured-to the slide 12 and operates in the guide 13 A ings in the connecting rod 14 connects the slide 12 with an eccentric or other driving mechanism on the cam shaft 4. The pump is provided with the suction or inlet valve 15 Which is held to its seat by a spring 16. The pump is also provided with the discharge valve 17 which is held to its seat by the spring 18. Fuel is delivered to the pump from any convenient source of supply through the pipe 19 and discharged from the pump and to the inlet valve of the engine through the pipe 20. The cylinders 1 and 3 are provided with an air starting apparatus which is of ordinary construction. They are provided with the valves 21. Air is delivered from the compressor or receiver under pressure through the inlet 22 by Way of the pipe 23. The valve 21 has the stem 24. The spring 25 operates on the stem to maintain the valve 21 normally in a closed position. The lever 26 has a slotted pivotal connection With the stem The leveris mounted on the eccentric 27, the eccentric being carried by a shaft 28. The shaft 28 is journaled in bearposts 29 extending upwardly from the cylinder. A gear segment 30 is fixed on the shaft 28 and meshes a gear seg-- ment 31 fixed on the controlling shaft It will be readily seen that as the controlling shaft is rocked, the shaft 28 is rocked through the action of the connecting gears and this rocking of the gears throws the eccentric 27 so as to drop the lever 26 from its normal. position. The end of the lever "26 when lowered is in the path of the cam which is mounted on the shaft 4. \Vheu, therefore, the controlling rod 32 is rocked, the lever 26 is so lowered as to be actuated by the cam 33 so as to operate the valve 21. thus admitting air at proper times for start ing the engine in the ordinary manner of air starting devices. As before stated, the cylinders 1 and 3 are provided with this mechanism and the rod 32 throws the air starting devices of both of these cylinders into action simultaneously. The air starting devices of both cylinders are identical, the only variation being that the cams 33 are so arrailllged as to properly time each cylinder.

ach pump is provided with a'lock-out pin 35 which is adapted to engage the inlet valve 15 andto hold said valve open so as to prevent thejdelivery of fuel by the pump, or in other words when the look-out pin 35 is forced downwardly so as to open the valve 15, liquid is drawn into the pump and then forced out again to the source of supply through the valve 15. The pin.35, is connected by a link 36 with a bell crank lever 37. The bell crank lever 37 is pivoted by means of a in 38 on a post 39 extending upwardly rom the pump body. The levers 37 for the pumps 5, 6' and 7 are provided with the pins 41, 42 and 43 respectively. Each lever is provided with a forked end, the arms of which extend to the sides of a group of slides 41, 42 and 43. The pin 41 extends through a perforation in the slide 41 and through slots in the slides 42" and 43. By reason of this construction when the slide 41 is actuated the pin 41 and with it the lever 37 of the pump 5 is actuated, the slots in the slides 42 and 43 permitting this movement independently of the latter slides. Similarly the pin 42 evtends through a perforation in the slide 42 and slots in the slides 41 and 43. By reason of this a movement of the slide 42 will actuate the pin 42 and with it the lever 37 operating the look-out pin 35 in the pump 6 and this is accomplished independently of any action of the levers 41 and 43*. The pin 43 extends through a perforation in the slide 43 and slots in the slides 41 and 42. By reason of this construction a movement of the slide 43 will move the pin 43 independently of the other slides to operate the look-out pin in the pump 7.

The slides 41 and 43 are bent outwardly at 41 and 43 so as to separate the ends of the slides slightly. The slides are provided with the notches 41, 42 and 43, these notches being in alinement when all the pumps are in action or out of action. The slides are provided with the finger pieces 41 42 and 43 by means of which each slide may be individually grasped and moved so as to throw in or throw out any pump desired. I

In order to have the controlling mechanism so locked as-to compel a position of the slides cutting out the fuel feeding device or pumps for those cylinders having the air starting devices, I provide the following mechanism correlating the air starting devices and the lock-out slides: The cross bar 44 has the notches 45 in its ends which are mounted on the pin s 46, the pins 46 being carried in the lugs or ears 47 extending from the sides of a 61 3543- The case is secured to a flat 49 on the side of one'of the engine cylinders. The bar 44 extends across the slides 41, 42* and 43 and is pro vided with the notches 51, 52 and 53 through which the slides 41*, 42 and 43 can operate when the bar is in neutral or running position. A lever 54 is pivotally mounted on a pin 55 extending from a 'post 56 on the shell 48. The; lever isconnected 6 which is as upper end which engages a tooth 64 ex-' tending from the operating lever 65, the operating leverbeing provided with a handle 66 by means of which it can be conveniently operated. The lever is fixed on the controlling shaft 32. The lever 65 has a latch 67 conveniently located with relation to the handle and this latch can be thrown into the notches 68, 69 and 70. \Vhen thrown into the notch 68 the controlling device is in starting position, that is to say, such position as to turn on the air on the air starting devices. When thrown in to the notch 69, the parts are in running position or such position that the air starting device is thrown out and fuelmay be delivered to all of the cylinders. \Vhen thrown into the notch 70, the controlling device is in what might be termed barring position, that is to say, in position which requires the cutting slides and the action of the locking bar 44 in relation thereto is as follows :'It will be noted that the'notch 52 is of sufficient length so that the bar may be moved toward the right as shown in Fig. 2 while still leaving the slide 42 in said notch. When the locking bar 44 is in neutral position or running position, the parts are as shown in Fig. 2 and with the parts in this position, the slides 41", 42 and 43" may be shoved in so as to throw out all the fuel delivering devices or may be pulled out so that fuel will be delivered to all the cylinders. In other words, these slides may be operated indepenntly as desired. When the controlling levr 65 is thrown so as to bring the latch h the notch 68 following through the ,ovements of the levers, it will be seen that v is will move the bar 44 toward the right i as shown in Fig. 2. Before this can be done the slides 41 and 43 must be pushed in from the position shown in Fig. 1 so as to bring the notches 41 and 43 into register with the bar. When these slides are in this position, the pumps 5 and 7 are cut out and it will be observed that these slides must be in this position and these pum s cut out before the controlling lever 65 can e thrown to a position to bring the latch into the starting notch 68. The extended'notch 52 in the bar 44 is such as to leave the slide 42 free from the action of the bar even when the bar is moved as suggested. For this reason fuel mag be delivered from thepump w d i artin e gine lever may be thrown to running position,

that is, placing the latch in the notch 69. This brings the locking bar to a neutral position. This movement in itself, however, does not thrrw the fuel into the cylinders 1 and 3. It simply unlocks the device so that the operator can by moving the slides 41* and 43 deliver fuel to all the cylinders. It often happens that after the engine is started and is simply running idle that it is desirable to admit explosive mixture toone cylinder until additional power is desired and this mechanism permits of this method of operation. When, however, the fuel is desired in all the cylinders with the controlling lever in running position, the slides may be forced to a position to supply fuel to all the cylinders.

It is sometimes desirable to lock out all the pumps for delivering fuel. By following the movement of the levers as shown in Fig. 2, it will be seen that when the controlling lever is thrown so as to bring the latch to the barring notch 70, the locking bar 44 is moved toward the left as shown in Fig. 2 and in order that the bar 44 may move toward the left it is necessary to bring all the notches in the slides namely, 41, 42 and 43 into register with the locking bar. \Vhen this is done, all the pumps are thrown out and if the controlling lever is then moved to the barring notch, none of the slides can be operated to pump fuel to any of the cylinders until after the controlling lever is moved from the barring notch. The operator may know with certainty, therefore, that with the controlling lever in the barring notch fuel is off all the cylinders.

In order to supply an emergency cut-off, 1 provide each of the slides with the lugs 71 and 72. A lever 73 pivoted on a pin '74.- is carried by the cars 75 extending downwardly from the case 48. The lever 73 has a cross piece 76 which will engage the lugs 71 on each of the slides. By grasping the lever 73 and swinging it so as to move the slides, instantly fuel may be simultaneously turned off of all the pumps by the operation of the single lever 73. The bars may be returned to position simultaneously by the action of the pin 76 on the lug 72.

What I claim as new is 1. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; means for throwing out the fuel pump connected with the cylinder having the starting device; and a lock-out device compelling thethroWing-out of the fuel pump; from the cylinder having the fluid. pressure starting device by said means to permit the moving of the controlling mechanism to starting position.

In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; means for throwing out the fuel pump connected with the cylinder having the starting device; and a lock-out device compelling the throwing out of the fuel pump from the cylinder having the fluid pressure starting device by said means to permit the moving of the controlling mechanism to starting position, said lock-out device permitting the operation of the controlling mechanism to cut off the fluid pressure from the starting device independently of the operation of said means.

In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device adapted to be set at starting position, running position or barring position; means for throwing out the fuel pump connected with the cylinder having the starting device; and a lock-out device compelling the throwing out of the fuel pump from the cylinder having the fluid pressure starting device by said means to permit the movement of the controlling mechanism to starting position and to compel the throwing out of all the fuel pumps to permit the movement of the controlling mechanism to barring position.

l. In a controlling device for internal ri-mbustion engines, the combination of a plurality oi" cylinders; a fluid pressure starting device for one of said cylinders; fuel i'ccil pumps for said cylinders; a controlling mechanism for the fluid pressure starting device adapted to he set at starting position or runuin g' position; means independently operative for throwing out rat-l: of the fuel pumps; and a lock-out device compelling the throwing out of the fuel pump from the cylinder hai ing the fluid pressure starting device by said means to permit a movement of the controlling mechanism to starting position.

5. 'In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said 0 linders; a controlling mechanism for the aid pressure starting device adapted to be set atstarting position or running position; means independently. operative for throwing out each of the fuel pumps; and a lock-out device compelling the throwing out of the fuel pump from the cylinder having the fluid pressure starting device by said means to permit a movement of the controlling mechanism to starting position and releasing said means to independent action with the control at running position.

6. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure startlng device for one of said cylinders; fuel feed pumps for said cylinders; a lock-out slide for the pump connected with the starting device; connecting mechanism between the slide and the pumps for throwing outthe pump connected with the fluid pressure starting device; a bar adapted to be thrown into and out of engagement with said slide controlling the mechanism for the fluid pressure startmg device; and a lock-out device actuated by said controlling mechanism compelling a movement of the slide throwing out the pump connected with the cylinder having the fluid pressure starting device to permit the movement of the controlling mechanism to starting position.

7. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure startmg device'i'or one of said cylinders; fuel feed pumps for said cylinders; lock-out slides for each pump connecting mechanisms between said slides and the pumps for communicating the movement of the slide to the pump to throw out the pump so connected; controllin mechanism for the fluid pressure starting evice; and a bar adapted to be thrown into and out of engagement with the slide connected with the pump having the starting device, said bar being connected with the controlling mechanism and adapted to compel a movement of the slide with which it is thrown into engagement to permit the movement of the controlling mechanism to starting position.

8. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure start ing device for one of said cylinders; fuel feed pumps for said cylinders; lock-out slides, one for each pump; connecting mech anism between each slide and the pump which it controls; a controlling mechanism for the fluid pressure starting device; and a locking bar adapted to be thrown into engagement with one of said slides while disengaged from another for locking one of said slides in position to throw out the pump to which it is connected while leaving the other slide independen ly operative.

9. In a controlling device for internal combustion engines, thejcombination of a plurality of cylinders; a fluid pressure starting device for one of said c linders; fuel feed pumps for saiddylin ers; lock-out slides, one for each pump; connecting mechanism between each slide and the pump which it controls; a controlling mechanism for the fluid pressure starting device; and a locking bar adapted to be thrown into engagement with one of said slides while disengaged from another for locking one of said slides in position to throw out the pump to which it is connected while leaving the other slide independently operative, said bar being adapted to engage all of said slides to compel a position of said slides throwing out all of said pumps.

10. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; a lock-out slide for the pump connected with the cylinder having the starting device, said slide having a locking notch therein; and a locking bar adapted to be thrown into and out of said notch by the action of the controlling mechanism compolling a position of said slide to throw out the pump connected with the cylinder having the starting device with the controlling mechanism in starting position.

11. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; slides for each of said pumps independently operative and each slide having a locking notch therein; and a locking-bar actuated by the controlling me chanism adapted to be thrown into one of said notches while disengaged with the notch of another slide for compelling the throwing out ofone of said pumps with the starting position oi the controlling mechanism.

12. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; i'uel teed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; slides for each of said pumps independently operative and each slide having a locking notch therein; and a locking-bar actuated "by the controlling mechanism} adapted to be thrown into one of said plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controlling mechanism for the fluid pressure starting device; slides controlling said pumps, each of said slides having notches therein; a locking bar having notches therein through which said slides may operate, one of said notches in the lockingbar being elongated to permit the bar being moved into engagement with one of said slides while leaving the other of said slides free; and a connection between the locking bar and controlling mechanism.

14. In a controlling device for internal combustion enginiJ-s, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; fuel feed pumps for said cylinders; controllingmechanism for the fluid pressure starting device; slides arranged side by side each slide having a perforation and a slot adjacent to the perforation of the companion slide; pins arranged through said perfora tions; a connection between the pins and the pumps for throwing out said pumps, the action of one slide or its pin being independent of any action of the companion slide by reason of the slot; and means conncctcd with the controlling mechanism operating on said slides for compelling a given position of the slide with the starting position of the controlling mechanism.

15. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for one of said cylinders; a. racking control rod for throwing said fluid pressure starting device into and out of action; a lever on said control rod adapted to be thrown to starting position and running position; pumps for said cylinders; means for throwing out the pump connected with the cylinder having the starting device; and a connection between the controlling lever and said means compelling the action of said means to throw out the pump connected with the cylinder having the starting device to permit the throwing of the starting lever to starting position.

16. In a controlling device for internal combustion engines, the combination of a plurality of cylinders; a fluid pressure starting device for on of said cylinders; fuel feed pumps for said cylinders having suction and discharge valves; controlling mechanism for the fluid pressure starting device; means for holding the suction valve of one of the pumps open to throw the pump out of action; and a lock-out device compelling the throwing out of the fuel pump connected with the cylinder having the fluid pressure starting device by said means to permit the moving of the controlling mechanism to starting position.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

WALTER \V. BROWN. Witnesses:

B. M. HARTMAN, H. C. Loan. 

